3 ms·
Or a simple `=() { bc -l <<< "scale=10;$1" }` in the usual bash file and you can use bc to do calculations by starting with a =. Just a little shortcut but REP
by alpaca128 6y ago
Or a simple `=() { bc -l <<< "scale=10;$1" }` in the usual bash
file and you can use bc to do calculations by starting with a =.
Just a little shortcut but REPLs like Python's take a while to
spin up, so it's pretty convenient.
- xorcist 6y agoThat's a nifty idea! Maybe without lower scale and with the semicolon: = () { bc -l <<< "$*"; } "Stealing" the equals sign for this purpose feels a bit risky, but maybe it isn't.
- JNRowe 6y agoI'd guess that xorcist added a space at the end of the function name because zsh uses =( to specify one type of process substitution. Without the space or an escape for = zsh will error on alpaca128's definition believing you wanted something else entirely. To that point zsh has some excellent additions for process substitution beyond bash's <(list), but it also makes for yet more weird incompatibilities for when that matters. I only looked at this to start with because I assumed the space was because =() would have been treated as the full path modifier for a command called (), because it would mean that with any other character including other bracket types. TIL.
- deadbunny 6y ago> Just a little shortcut but REPLs like Python's take a while to spin up, so it's pretty convenient. Really? Loading python takes basically 0 seconds for me... the slowest I could get running `time python3` and hitting ctrl-d (to exit) is like 0m0.104s.
- stjohnswarts 6y agopython comes up in way less than a second on my old mac air?